When it comes to Mexican sauces, it doesn't get more complex or delicious than mole. In fact, in the country's Oaxaca region, mole is often valued over the actual dish the sauce is topping. It's a key component in many feasts and celebrations, especially on Dia de los Muertos. Ingredients for traditional mole typically inlude a combination of chiles, sesame seeds, tomatillos, spices, dried fruits, nuts, and chocolate. There are more variations than we can count, but there are seven definitive Oaxacan types.